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difference of cubes

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18 articles trouvés pour ce sujet.
A limit 2015-02-19
genc pose la question :
Lim (27x^3-1) / (3x-1)
X-> 1/3

Harley Weston lui répond.
A difference quotient 2015-01-12
Sasha pose la question :
Simplify the difference quotient

f(x) − f(a)/ x-a
if x ≠ a.
f(x) = x^3 − 12

Penny Nom lui répond.
a cube-b cube-a+b= ? 2013-06-16
saryu pose la question :
a cube-b cube-a+b= ?
find the answer

Penny Nom lui répond.
Difference of cubes 2010-05-22
Anad pose la question :
how can we prove a^3 - b^3 is equal to (a-b)(a^2+ab+b^2)?
Penny Nom lui répond.
A difference quotient 2009-06-17
Sue pose la question :
When s(x)=x^3+x, compute and simplify the difference quotient s(x+h)-s(x)/h.
Harley Weston lui répond.
Factoring 2008-11-19
Neji pose la question :
How do you factor (y-z) (y+z) (y^4+y^2z^2+z^4) and get (y+z)(y^2-yz+z^2) (y-z) (y^2+yz+z^2) as the answer?
Harley Weston lui répond.
A cubic equation 2008-08-25
RAM pose la question :
The following Cubic Eqn should have three roots - what are they?


Penny Nom lui répond.
Sum and difference of cubes 2008-01-30
Amanda pose la question :
It has been a really long time since I was in Algebra and I can't remember how to factor cubes such as x^3 +81 or subtracting/adding fractions with variables such as [1/(x+h)+2]-[1/x+2]. Please help!!!
Penny Nom lui répond.
Explaining the factoring for the difference of cubes 2008-01-16
Bill pose la question :
A student asked me where did the "difference of cubes" and "sum of cubes" come from. I did not have an answer for her. She is very bright and understands how they work but wanted to know where they derived from. Any help you can offer would be great. Thanks
Stephen La Rocque lui répond.
(a^(1/3) – b^(1/3)) ( a^(2/3) + a^(1/3)b^(1/3) + b^(2/3)) 2006-10-24
Julie pose la question :
(a1/3 – b1/3) ( a2/3 + a1/3b1/3 + b2/3)
Haley Ess lui répond.
Factor 2006-03-08
Brad pose la question :
x3 + 64m3 and 125p3 - q6

Penny Nom lui répond.
3x^4 - 81 2006-01-02
Julio pose la question :
How can I factor the following?:

3x4 - 81

Penny Nom lui répond.
"a" cubed minus "b" cubed 2004-12-02
Denise pose la question :
"a"cubed minus "b"cubed equal (a-b) times
("a"squared plus "ab" plus "b"squared)?

I know this is a formula, but why is it true?

Penny lui répond.
Factoring 2004-07-19
A student pose la question :
Factor completely:
3x3 - 24y3
54x6 + 16y3
16xy - 4x - 4y - 1
0.09x2 - 0.16y2

Penny Nom lui répond.
Some factoring problems 2004-04-15
KJ pose la question :

Factor these:
x3+125 -----> (x+5)3
8x3-27 -----> (?)
x2+36 -----> (x+6)2
x4-5x2+4 --> (?)

Penny Nom lui répond.
Factoring 2002-12-11
Larry pose la question :

how do u factor trinonmials

EX: X 3 + Y 3

X 3 - 8Y 3

8X 2 - 72

64A 3 - 125B 6

Penny Nom lui répond.
Factoring ^6 2000-01-03
Athena pose la question :

my name is Athena and I have a question on factoring: how would you figure this out:

(x6-y6) and (x6+y6)

Penny Nom lui répond.
Factoring 1999-03-30
Maggie Stephens pose la question :
I don't know anything about factoring would you plese help me.

3x4 - 48

54x6 + 16y3


12x2 - 36x + 27

9 - 81x2

a3 + b3c3

I would greatly appreciate any help you can give me thanks.
Jack LeSage lui répond.




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